Question

The frequency of turning fork is $256Hz$. It will not resonate with fork of frequency will be

• A. $786Hz$
• B. $738Hz$
• C. $512Hz$
• D. $256Hz$

Answer 1

The correct option is B $738Hz$

Turning fork of $256Hz$ will resonate with for okf frequencies $=n{\nu }_o$

Where $n=1,2,\mathrm{3....}$

Resonate with the frequencies: $1\times 256,2\times 256,3\times 256$ etc.
$256Hz,512Hz,768Hz$ etc.
Fork of $738Hz$ will not resonate.